Concrete block.



H. N. PET'I'IGREW.

GONGRE'I'E BLOCK.

APPLIUATION FILED JUNI; 4,1908.

Patented Har. 9, 1909. /z'z f 5 y; ////a auen! OQO J a J j J W QMWWWVHERBERT NOEL PETTIGREW, OF NEW ORLEANS, LOUISIANA.

CONCRETE BLOCK.

Specification of Lettera Patent.

Patented March 9, 1909.

Application filed June 4, 190s. sei-in No. stessi.

To all whom fit ymuy concern:

Be it known tliatl, HERBERT NOEL Perrionrw, a citizen of the UnitedStates, residing at New Orleans, in the parish of rleans and State ofLouisiana, have invented a new and useful Concrete Bloek, of Which thefollowing is a specification.

This invention relates to concrete wall construction and has foritsobjeet to provide a wall having intersecting horizontal and verticalllues extending the entire height of the wall thereby to permit thecirculation ol air within the Wall and thus prevent moisture on theoutside of the latter from penetrating the wall and wetting or otherwiseinjuring the plaster.

ir further object of the invention is to' provide a wall the concreteblocks of which are spaeed apart by separable fillers or Web blot-ks,the fillers or web blocks ot' different courses in the wall beingdisposed in staggered relation thereby to reinforce and strengthen thewall and produce a strong, rigid structure.

l `uriher objects ind advantages will apA pear in the followingdescription, it heilig understood that rai-ions changes in forni,proportions and minor details of construe tion may be resorted to`within the scope of (be appended olaini.

in the aoeoinpanying drawings forming a part oi lliisfspoeiicationFigure l is a side elevation oi a portion of a Wall Constructed iuarrordanco with my invention. Fig. 2 'is a top plan vien' of the saine.Fig. 3 is a transverse-sertional view taken on the line :l .ij ot' llig.2. Fig. t is a transverse seciional view taken on the line -fi of Fi 2.lf'ig. is a transverse sectional view iusirai 'nig a modified forni ofthe invention.

riimilar numerals of reference indicate corresponding parts in all ofthe figures of [be drawings.

The improved wall forming the subject main-r ot the present invention isformed of a plurality ol' side blocks 5 of the general contour `shown inFigs. l and 2 of the drawing. said side bloc-lis being substantiallyrectin ,ular in shape and having flat up er and lower longitudinal edgesand parallel end walls i'. 'lhe inner liao-c of each side block ismolded or otherwise formed with an integral laterally extending lu 8referabl' ot the same height as the boy oPthe bloc and of amiroximatelytwice the thickness of the latter.

Interposed between the side being substantially rectangular in shape andreinforced by one or more transversely disposed corrugated Inetalliestrips l0. The web blocks J are of the saine height as the side bloclrsso that when the side blocks and fillers are laid into a Wall the upperedges of the fillers will be disposed flush with the uppei' and loweredges of the side blocks in the same Course.

ln constructing a Wall the side blocks are disposed in snperposed orderand arranged to break joint with the inwardly extending lugs ti of theblocks on one side of the wall arranged opposite the abutting faces ofthe blocks on the opposite side of the Wall in the same eourse and withthe fillers or web blocks tl disposed at the juncture 11 of the sideblocks and bearing against the lugs V8, as shown, thereby to forni aplurality of vertically disposed air chambers or tlues 12.

The illors oi' web blocks 9 are preferably 'of the saine thickness asthe lugs 8 and are each pierced by a transverse openin 13 thereby topermit free circulation o air horizontally through the wall.

Attention is here called to the fact that the web blocks or fillers inthe several courses are disposed in staggered relation; with the webblocks in one course of the wall bearing against the web blocks andprojections S in a preceding and suceeedinlr course thereby firmlylocking said We` blocks against accidental displacement and at the sainetime forming a strong, rigid structure which will eifeetually withstandthe action of the elements. It Will also be noted that by reason of thedisposition of the web blocks the openings 13 of said blocks will bedisposed out of alinenient with each other so as to permit a eirenitouspassage of air horizontally of the wall and through the severalcompartments or chambers therein.

The (-orurr blorhs lli are provided with angular extensions lo whichabat against the Hat vertical edges ot the adjacent side blocks, saidcorner blorlrs beingT also provided with inwardly mtonding lugs 1Gsintilar in o1'islrurlion lo the lugs 8 of the side blocks or members.

Suitable auxiliary blocks 17 are used in conjunction with the cornerblocks, said auxiliary blocks being devoid of the lugs 8 so that whenthe auxiliary blocks are positioned in the wall the adjacent fillinblock will bear against the smooth inner ace of the auxiliary block andthe vertical ed e of the adjacent side block bear against t e smoothouter face of said auxiliary block, as best shown in Fig. 2 of thedrawings.

If desired, the fillers or web blocks 9 may be formed solid orimperforate, as indicated at 9 in Fig. 5 of the drawings, and in whichevent the air is free to circulate vertically of the wall but nothorizontally thereof.

The several blocks are preferably formed of a composition ot' sand,cement and Gravel, the exterior or exposed faces of the 2hlocks beinfinished with a relatively fine materia such as fine sand and cement. Ifdesired, however, the exposed faces of the blocks may be molded orotherwise formed in imitation of cut or chipped rock so Aas to give thewall the appearance of a solid stone structure.

In makin the blocks with a rough face two of the slde blocks arepreferabl formed in the same mold, face to face, an allowed to cure,after which the integral block thus formed is split or severedlongitudinally thus forming each side block with an exposed face inexact imitation of rock face stone.

Havin thus described the invention what is claime is:

In a Wall structure, the combination with spaced wall sections, eachwall section hav- 1n` spaced portions of greater thickness than ot erportions, said portions of greater thickness projecting inwardly intothe space between the sections, the ortions of vgreater thickness of onesection in `disposed oppositie the spaces between t e portions ofgreater thickness of the other section, of a plurality of bond blocks,each bond block havmg one end located' in the space between and clampedby the portions of' greater thickness of one wallsection the other endprojecting into the space between said wall sections and terminatingadjacent to the opposite portion of greater thickness of the other walsection, said bond blocks being arranged one upon another in stag eredre lation and alternately rojecting rom the said opposite spaced wallsections.

In' testimony that I claim the foregoing as my own, I have hereto aixedmy slgnature in the presence of two witnesses.

nrarar rom, rr'rrlearw.

Witnesses:

I-I. K. PE'rrIoREw, F. W. QU'IN.

